Add support for custom Faker providers in AnonymizedFaker and PsuedoAnonymizedFaker

[srinify]

Problem Description

Faker supports custom providers, which can be helpful for creating dummy data that's highly specific to someone's use case: https://faker.readthedocs.io/en/master/#how-to-create-a-provider

Extending AnonymizedFaker and PsuedoAnonymizedFaker to support this functionality would help increase the usefulness of RDT.

Additional context

Originally suggested here: #792